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4 years ago

Round 258,177 to the nearest hundred thousands

Mathematics

2 answers:

Marat540 [252]4 years ago

8 0

Answer:300,000

Step-by-step explanation:

Yuki888 [10]4 years ago

5 0

Is that 258.177 or 258,177. because if its a decimal then you would look at the third space behind the decimal since that is hundredth thousandths and since its 7 it would round the other 7 to be an 8 so they answer would be 258.18

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A researcher wants to construct a 90% confidence interval for the proportion of elementary school students in Seward County who

dezoksy [38]

Answer:

The sample size is $n =68$

Step-by-step explanation:

The population proportion is $\^ p = 0.50$

The margin of error is $E = 0.1$

From the question we are told the confidence level is 90% , hence the level of significance is

$\alpha = (100 - 90 ) \%$

=> $\alpha = 0.10$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.645$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )$

=> $n = [\frac{1.645 }{0.1} ]^2 * 0.50 (1 - 0.50 )$

=> $n =68$

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3 years ago

What is the principal, if the interest earned is $22, the simple annual interest rate is 2%, and the time is one year?

seropon [69]

Answer:

$1,100

Step-by-step explanation:

first find the principal first Multiply the rate 0.02 by the time 1 year this gives us 0.02 then divide the interest ($22) by 0.02 then you get $1,100.

Hope that helped!

4 0

3 years ago

Use the interactive protractor to determine the measure of the angle. what is manglejhg? 70° 75° 110° 115°

DanielleElmas [232]

Using the interactive protractor, the measure of the angle JHG is 115°

<h3>How to determine the measure of the angle?</h3>

The image that completes the question is added as an attachment.

The question requests that we determine the measure of JHG using a protractor.

To do this, we set one end of the protractor at 0°.

Then, we take the measurement of the other end

Using the interactive protractor, the other end stops at 115°

Hence, the measure of the angle JHG is 115°